問題描述

我正在努力尋找一個關于 asp.net 本地化的好教程.在官方文檔中，解釋是關于.resx文件，我想使用json文件.

I'm trying to find a good tutorial about asp.net localization. In the official documentation, the explanation are about .resx files and I want to use json files.

如果有人有關于如何編寫中間件的好教程.

If someone have a good tutorial on how to write the middleware to do that.

謝謝

推薦答案

Nuget 包

https://www.nuget.org/packages/Askmethat.Aspnet.JsonLocalizer/

解決方案

經過一番調查，終于在Asp/Localization GitHub中找到了一個例子.

After some investigations, I finally find an example in Asp/Localization GitHub.

我在這里為那些不想在不破壞默認文化提供程序的情況下使用平面 json 的人提供.

I provide here for people that wan't to use a flat json without breaking default culture provider.

數據:

平面 json :

[
  {
    "Key": "Hello",
    "LocalizedValue" : {
      "fr-FR": "Bonjour",
      "en-US": "Hello"
    }
  }
]

C# 模型:

class JsonLocalization
    {
        public string Key { get; set; }
        public Dictionary<string, string> LocalizedValue = new Dictionary<string, string>();

    }

中間件

工廠

這只是為了訪問CultureInfo 是StringLocalizer.

 public class JsonStringLocalizerFactory : IStringLocalizerFactory
    {
        public IStringLocalizer Create(Type resourceSource)
        {
            return new JsonStringLocalizer();
        }

        public IStringLocalizer Create(string baseName, string location)
        {
            return new JsonStringLocalizer();
        }
    }

定位器

從 JSON 文件中獲取數據的邏輯

public class JsonStringLocalizer : IStringLocalizer
{
    List<JsonLocalization> localization = new List<JsonLocalization>();
    public JsonStringLocalizer()
    {
        //read all json file
        JsonSerializer serializer = new JsonSerializer();
        localization = JsonConvert.DeserializeObject<List<JsonLocalization>>(File.ReadAllText(@"localization.json"));

    }


    public LocalizedString this[string name]
    {
        get
        {
            var value = GetString(name);
            return new LocalizedString(name, value ?? name, resourceNotFound: value == null);
        }
    }

    public LocalizedString this[string name, params object[] arguments]
    {
        get
        {
            var format = GetString(name);
            var value = string.Format(format ?? name, arguments);
            return new LocalizedString(name, value, resourceNotFound: format == null);
        }
    }

    public IEnumerable<LocalizedString> GetAllStrings(bool includeParentCultures)
    {
        return localization.Where(l => l.LocalizedValue.Keys.Any(lv => lv == CultureInfo.CurrentCulture.Name)).Select(l => new LocalizedString(l.Key, l.LocalizedValue[CultureInfo.CurrentCulture.Name], true));
    }

    public IStringLocalizer WithCulture(CultureInfo culture)
    {
        return new JsonStringLocalizer();
    }

    private string GetString(string name)
    {
        var query = localization.Where(l => l.LocalizedValue.Keys.Any(lv => lv == CultureInfo.CurrentCulture.Name));
        var value = query.FirstOrDefault(l => l.Key == name);
        return value.LocalizedValue[CultureInfo.CurrentCulture.Name];
    }
}

通過這個解決方案，您可以在 Views 和 Controllers 中使用基本的 IStringLocalizer.

With this solution you are able to use the basic IStringLocalizer in your Views and Controllers.

當然，如果你有一個很大的 json 文件，你可以使用 IMemoryCache 或 IDistributedMemoryCache 來提高性能.

Of course if you have a big json file, you can use IMemoryCache or IDistributedMemoryCache to improve performance.

在應用程序啟動中添加此行以使用您自己的實現:

In the application Startup add this lines to use your own implementation :

services.AddSingleton<IStringLocalizerFactory, JsonStringLocalizerFactory>();
services.AddSingleton<IStringLocalizer, JsonStringLocalizer>();
services.AddLocalization(options => options.ResourcesPath = "Resources");

之后，您可以根據自己的全球化偏好進行配置.

After that you can configure as you want your globalization preferences.

這篇關于帶有 json 文件的 Asp.net Core 本地化的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！